*{
    box-sizing: border-box;
}

.top {
    /* background-color: rgb(107, 139, 19); */


    position: fixed;
    top: 0;

    list-style-type: none;
    margin: 0;
    padding: 0;
    height: 60px;
    width: 100%;
    border-bottom-style: solid;
    border-block-color: rgb(224,224,224);
    border-bottom-width: 1px;
    overflow: hidden;

    -webkit-user-select:none;/*谷歌 /Chrome*/
    -moz-user-select:none; /*火狐/Firefox*/
    -ms-user-select:none;    /*IE 10+*/
    user-select:none;
}

.left {
    float: left;
    margin: 5px 5px 50px 50px;
    height: 50px;
    width: 280px;

    /* outline-style: solid;
    outline-width: 1px; */
}

.right {

    margin: 5px 40px 5px 0px;
    height: 50px;
    width: 295px;
    float: right;

    /* outline-style: solid;
    outline-width: 1px; */

}

li a {
    height: 50px;

    display: flex;
    justify-content: center;
    align-items: center;

    text-decoration: none;

    /* outline-style: solid;
    outline-width: 1px; */

    color: black;

}

.left a {
    float: left;

}

.right a{
    float: right;
}

.logo {

    font-size: 35px;
    font-family: '华文琥珀';
    color:blueviolet;
    width: 150px;

}

.aboutWe {
    margin-left: 30px;
    width: 100px;
    font-size: 15px;
    border-radius: 7%;
    background-color: rgb(0, 86, 210);
    color: white;
    font-weight: bold;
}

.join {

    margin: 5px 0px;
    height: 40px;
    width: 75px;
    border-radius: 7%;
    font-size: 13px;
    color: white;
    font-weight: bold;
    background-color: rgb(0,86,210);
}

.login,.advice,.sponsor{
    width: 50px;
    font-size: 15px;
}
.login {
    color: rgb(0,98,228);
}

.use {
    width: 70px;
}

.sponsor:hover,.use:hover,.advice:hover,.login:hover{
    text-decoration: underline;
    color: rgb(0,98,228);
}

.aboutWe:hover {
    background-color: white;
    color: blue;
    outline-style: solid;
    outline-width: 2px;
    outline-color: black;
}
